Command Line Reference Guide

726 | Open Shortest Path First (OSPFv2 and OSPFv3)
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Command Modes
ROUTER OSPF
Command
History
Usage
Information
To enable OSPF on an interface, the network area command must include, in its range of addresses,
the primary IP address of an interface.
If you delete all the network area commands for Area 0, the show ip ospf command output will not list
Area 0.
passive-interface
c e s
Suppress both receiving and sending routing updates on an interface.
Syntax
passive-interface {default | interface}
To enable both the receiving and sending routing, enter the no passive-interface interface
command.
To return all OSPF interfaces (current and future) to active, enter the no passive-interface default
command.
Parameters
Command Modes
ROUTER OSPF
mask
Enter a network mask in /prefix format. (/x)
area-id
Enter the OSPF area ID as either a decimal value or in a valid IP address.
Decimal value range: 0 to 65535
IP address format: dotted decimal format A.B.C.D.
Note: If the area ID is smaller than 65535, it will be converted to a decimal value. For
example, if you use an area ID of 0.0.0.1, it will be converted to 1.
Version 8.3.5.0 Introduced on S55
Version 7.8.1.0 Introduced support for Multi-Process OSPF.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
Note: An interface can be attached only to a single OSPF area.
default Enter the keyword default to make all OSPF interfaces (current and future) passive.
interface
Enter the following keywords and slot/port or number information:
• For a Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by
the slot/port information.
• For Port Channel groups, enter the keyword
port-channel followed by a number:
C-Series and S-Series Range: 1-128
E-Series Range: 1-255 for TeraScale
• For a SONET interface, enter the keyword
sonet followed by the slot/port
information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
followed by the slot/port information.
• For a VLAN, enter the keyword
vlan followed by a number from 1 to 4094.